New dielectric waveguide structure for millimetre-wave optical control
Abstract
A new dielectric waveguide structure is proposed for obtaining large attenuation for millimeter-wave optical control. It is shown that the attenuation of the proposed structure is an order of magnitude larger than that of a commonly used rectangular semiconductor waveguide. The structure involves a rectangular dielectric waveguide with semiconductor layers deposited on the top and bottom surfaces. The idea is to increase the attenuation by increasing the portion of mode power carried by the lossy semiconductors. Numerical results for the waveguide with silicon layers are calculated at 100 GHz. It is assumed that electron-hole plasmas are produced uniformly through the semiconductor layer with optical illumination.
- Publication:
-
Electronics Letters
- Pub Date:
- March 1983
- DOI:
- 10.1049/el:19830174
- Bibcode:
- 1983ElL....19..253O
- Keywords:
-
- Dielectrics;
- Laser Plasmas;
- Luminous Intensity;
- Microwave Attenuation;
- Millimeter Waves;
- Rectangular Waveguides;
- Semiconductor Devices;
- Attenuation Coefficients;
- Permittivity;
- Plasma Density;
- Plasmaguides;
- Electronics and Electrical Engineering